{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6GK7443-1EX20-0XE0","brand":"Siemens","brandSlug":"siemens","productSlug":"6GK7443-1EX20-0XE0","canonicalUrl":"https://aoctrl.com/siemens/6GK7443-1EX20-0XE0","factsUrl":"https://aoctrl.com/api/mcp/products/6GK7443-1EX20-0XE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens CP 443-1, 6GK7443-1EX20-0XE0, PROFINET IO controller module for S7-400, single-width compact format, 10/100 Mbit/s, supports IRT, ring redundancy, DCP, NTP, LLDP, 7.25 W power loss.","salesMarkdown":"## PROFINET IO Controller for S7-400 The Siemens 6GK7443-1EX20-0XE0 is a PROFINET IO controller module in a single-width compact format for the S7-400 rack. It provides a 10/100 Mbit/s switched interface with IRT support. The module supports up to 4 PROFINET IO controllers per CPU, and up to 14 IO devices per controller, with a maximum of 128 devices when using multiple CPUs. This scalability fits medium-to-large distributed I/O architectures without needing a separate switch for each segment. ## Network Services and Redundancy Built-in ring redundancy with a redundancy manager allows the module to participate in PROFINET media-redundant rings. The module supports DCP, NTP, LLDP, and SNMP v1 for network discovery, time synchronisation, and topology mapping. These services simplify commissioning and diagnostics in a managed industrial Ethernet environment. IP-based ACL filtering is supported, but ACL for PLC/routing is not. The module also includes a web-based diagnostics function and a log file for unauthorised access is absent. The module draws 5 V from the backplane bus with a typical power loss of 7.25 W. It is rated IP20 for use in a clean, enclosed control cabinet.","metaTitle":"Siemens 6GK7443-1EX20-0XE0 CP 443-1, PROFINET IO Controller","metaDescription":"Siemens 6GK7443-1EX20-0XE0 CP 443-1 PROFINET IO controller module. Supports DCP, NTP, LLDP, ring redundancy, IRT. Current production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLC Communication Modules"],"specifications":{"DCP":"Yes","NTP":"Yes","LLDP":"Yes","Note":"max. 4 as PN IO ctrl.","Depth":"210 mm","Width":"25 mm","C-PLUG":"No","Height":"290 mm","at 5 V":"5 %","Maximum":"128; when using several CPUs","SNMP v1":"Yes","Required":"STEP 7 V5.4 SP4 or higher","Module Format":"Compact module S7-400 single width","ACL - IP-based":"Yes","During Storage":"-40 ... +70 °C","Switch-Managed":"No","power loss [W]":"7.25 W","Ring Redundancy":"Yes","lifecycle_stage":"current","During Operation":"0 ... 60 °C","During Transport":"-40 ... +70 °C","per CPU / maximum":"14","Redundancy Manager":"Yes","protection class IP":"IP20","At The 1st Interface":"10 ... 100 Mbit/s","Security Information":"Siemens provides products and solutions with industrial security functions that support the secure operation of plants, solutions, machines, equipment and/or networks. They are important components in a holistic industrial security concept. With this in mind, Siemens’ products and solutions undergo continuous development. Siemens recommends strongly that you regularly check for product updates. For the secure operation of Siemens products and solutions, it is necessary to take suitable preventive action(e.g. cell protection concept) and integrate each component into a holistic, state-of-the-art industrial security concept. Third-party products that may be in use should also be considered. For more information about industrial security, visit http://www.siemens.com/industrialsecurity. To stay informed about product updates as they occur, sign up for a product-specific newsletter. For more information, visit http://support.automation.siemens.com. (V3.4)","Product Feature / Switch":"Yes","configuration with STEP 7":"Yes","with IRT / PROFINET IO switch":"Yes","with PG connections / maximum":"2","ACL - IP-based for PLC/routing":"No","by means of T blocks / maximum":"64","product function / MIB support":"Yes","Log File For Unauthorized Access":"No","product function / SICLOCK support":"Yes","Switch-Off Of Non-Required Services":"Yes","Supply Voltage / 1 / From Backplane Bus":"5 V","Type Of Voltage / Of The Supply Voltage":"DC","Product Function / Web-Based Diagnostics":"Yes","password protection for Web applications":"No","product function / PROFINET IO controller":"Yes","Blocking Of Communication Via Physical Ports":"Yes","from backplane bus / at DC / at 5 V / typical":"1.4 A","Product Function / Pass On Time Synchronization":"Yes","Number Of Active Connections / With Multi-Protocol Mode":"128","at the 1st interface / according to Industrial Ethernet":"RJ45 port","number of interfaces / according to Industrial Ethernet":"2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$571.50 – $947.00","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b9072a66e1476e17c29af584d4719fc3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=128727&mlfb=6GK7443-1EX20-0XE0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6GK7443-1EX20-0XE0/alternatives.json"},"ai":{"faq":[{"question":"What network services does the CP 443-1 support?","answer":"The module supports DCP, NTP, LLDP, SNMP v1, and ring redundancy with a redundancy manager. It also includes web-based diagnostics and IP-based ACL filtering."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6GK7443-1EX20-0XE0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/6GK7443-1EX20-0XE0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}